Jon Larsen (born 7 January 1959) is a gypsy jazz guitarist, record producer, painter, and amateur scientific researcher.

[3] He has worked with Chet Baker, Philip Catherine, Stéphane Grappelli, Warne Marsh, Biréli Lagrène, Babik Reinhardt and Jimmy Rosenberg.

[2] He has led a group of musicians who played with Zappa, including Arthur Barrow, Jimmy Carl Black, Bruce Fowler, Bunk Gardner, Tommy Mars, and Don Preston.

[2] After eight years of research, his book on cosmic dust in urban environments – In Search of Stardust: Amazing Micro-Meteorites and Their Terrestrial Imposters – was published in 2017.

[1] In 2020, he appeared in Werner Herzog's documentary film Fireball: Visitors from Darker Worlds where he demonstrated the methods of sampling micro-meteorites from urban environments.